AUTOPILOTBNAACBatch Noise Adaptive Autopilot Controller

PT500 Series UPGRADE

YOKOGAWA

Yokogawa Denshikiki Co., Ltd.Bulletin 80822M01E

1st Edition

ffim001

FEATURESEasy Settlement of the Ship' s Basic ModelAutomatic Update of the Ship' s Disturbance ModelImprovement of Rudder Controllability by Detection of DisturbanceAutomatic Setting of Rudder Control Gain Optimally"lmprovement of Fuel Cost" as Result of the Above-Mentioned Features

AUTOPILOT ,BNAAC "BNAAC IS THE NEW FUEL SAVE TYPE AUTOPILOT INTRODUCED THE LATESTMODERN CONTROL THEORY.

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BNAAC BLOCK DIAGRAM

aa

a

t)

Ship's lSp""O v

Red arrow shows normal autopilot control loop. (Feedback Loop)Ship's Basic ModelThis model estimates ship's deviation based on the rudder input.Model ldentifier (Disturbance Model)This model estimates disturbance around the ship.Current Ship's ModelThis model is update Ship's character and disturbance.Pertormance Index and Gain ComputerThis function calculates optimal rudder gain by current ship's model.

Heading Q

a.ooJo(5!E(l)o

LL

CurrentShip's Model

Ship'sBasic Model

Ship's Basic Model

Disturbance Model

between basic

Model Identifier

Update of Optimal

rEST RESUTT OF CONTROLLABILITYDeviation

-

BNAAC.-- PT500A

4.03.02.01.0

G 0.0,g -1.0? -zo, -3.0m

-4.0-5.0-6.0-7.0-8.0

8.01.06.05.04.03.02.01.00.0-1.0-2.0-3.0-4.0

"ao!o

FI

1,800Time[s]

Rudder Angle

3,600

-BNAAC-

PTSOOA

.aEO

z6

12.0

9.06.03.00.0

-3.0-6.0-9.0

-12.0-15.0-18.0-21.0-24.0

24.021.018.01501209.06.03.00.0-30-6.0-9.0

E-

OOFcr

1.800 2,400Time[s]

Ship's Speed

) -12.0

3,600

-

BNAAC

-

PTsOOA16.34

16.32

16 34

-

16.30C

15O< 1628zd)

1 6.26

16.24

to ll

16.32

1 6.30 -c

16.28 IFL

1 6.26

16.24

16.221,200 1,800

TimeIs]2,400 3,000

Ship's Type Draught Improvement Ratel% IRudder Angle Deviation Shrp s Speed fudCorp-rpti:nVLCC Full 60.89

-1.08 0.203 0.61

I gNnnC has achieved course keeping equal with PT500A by an amountof the steer which is 60% less.

I ship's speed was improved by BNAAC. As a result, fuel consumptionwas reduced compared with PT500A.

TESTRESULT OF FUEL CONSUMPTIONl Containen Vessel (6,200TEU) and Cape Size Bulk Carrier (Example)

Sea State AverageContainer [%]Average

180 BC t%l2 0.85 0.713 1.1 1 0.934 1.76 1 .315 0.52

TOTAL 1 .12 0.93

UPDATE PROCEDURE FROM PTflOOAI Upsrading time will be only about 2hours, and can be upgraded on

berthing under cargo handling, without sea trial.I PT500D AutoPilot also can be upgrade to BNAAC by exchanging Auto

Steering Unit.

aa. Open Pilot Stand of PT500A. The Auto Steering Unit will be appeared.

cc. Exchange the AUTO CPU and I/O(1) PCB for BNAAC

OPEN

Two PCB forPTsOOA

REMOVE

Two PCB forBNAAC

EXCHANGE

YOKOGAWA Yokogawa Denshikiki Co., Ltd.URL : http://www.yokogawa.com,/ydkz'

..,...,;....,.... Please read the manual\"''i i !rr;!" before using this product

Marine Equipment Business DivisionAddress: Minami Shinjuku Hoshino Bldg.

5-23-13 Sendagaya, Shibuya-ku, Tokyo, 151*0051 JAPAN b6oAR (Pte.) LIMITEDg ff Oot am'Road #1 I-06/07/08

lnternational Sales Dept.Service Dept.Domestic Sales Dept.

Osaka BranchImabari BranchFukuoka Branch

Phone: (81 ) 3-3225-5383Phone: (81 ) 3-3225-5392Phone: (81 ) 3-3225*5382Phone: (81 ) 6-6345*8566Phone: (81 ) 898-22*4559Phone: (81) 92-212 a954

FAX: (81) 3-3225-5325FAX: (81) 3-3225-5325FAX: (81) 3-3225-5325

FAX: (81) 6-6345-8567FAX: (81) 898-33-2005FAX: (81) 92-272-0955

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65 65509530 (Service DePt)r"* Norios 6224089a, 65 62234196

Subject to alteration due to technical developments without notice 2011.02 (YDK)